/*
 * This file is part of Applied Energistics 2. Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved. Applied
 * Energistics 2 is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General
 * Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any
 * later version. Applied Energistics 2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
 * Public License for more details. You should have received a copy of the GNU Lesser General Public License along with
 * Applied Energistics 2. If not, see <http://www.gnu.org/licenses/lgpl>.
 */

package appeng.core.sync.packets;

import java.io.IOException;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.EntityPlayerMP;
import net.minecraft.inventory.IInventory;

import appeng.api.AEApi;
import appeng.api.storage.data.IAEItemStack;
import appeng.container.implementations.ContainerPatternTerm;
import appeng.core.sync.AppEngPacket;
import appeng.core.sync.network.INetworkInfo;
import appeng.util.item.AEItemStack;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;

public class PacketPatternSlot extends AppEngPacket {

    public final IAEItemStack slotItem;

    public final IAEItemStack[] pattern = new IAEItemStack[9];

    public final boolean shift;

    // automatic.
    public PacketPatternSlot(final ByteBuf stream) throws IOException {

        this.shift = stream.readBoolean();

        this.slotItem = this.readItem(stream);

        for (int x = 0; x < 9; x++) {
            this.pattern[x] = this.readItem(stream);
        }
    }

    private IAEItemStack readItem(final ByteBuf stream) throws IOException {
        final boolean hasItem = stream.readBoolean();

        if (hasItem) {
            return AEItemStack.loadItemStackFromPacket(stream);
        }

        return null;
    }

    // api
    public PacketPatternSlot(final IInventory pat, final IAEItemStack slotItem, final boolean shift)
            throws IOException {

        this.slotItem = slotItem;
        this.shift = shift;

        final ByteBuf data = Unpooled.buffer();

        data.writeInt(this.getPacketID());

        data.writeBoolean(shift);

        this.writeItem(slotItem, data);
        for (int x = 0; x < 9; x++) {
            this.pattern[x] = AEApi.instance().storage().createItemStack(pat.getStackInSlot(x));
            this.writeItem(this.pattern[x], data);
        }

        this.configureWrite(data);
    }

    private void writeItem(final IAEItemStack slotItem, final ByteBuf data) throws IOException {
        if (slotItem == null) {
            data.writeBoolean(false);
        } else {
            data.writeBoolean(true);
            slotItem.writeToPacket(data);
        }
    }

    @Override
    public void serverPacketData(final INetworkInfo manager, final AppEngPacket packet, final EntityPlayer player) {
        final EntityPlayerMP sender = (EntityPlayerMP) player;
        if (sender.openContainer instanceof ContainerPatternTerm patternTerminal) {
            patternTerminal.craftOrGetItem(this);
        }
    }
}
